[linux] lsyncd同步工具
環境說明：
192.168.56.101 同步源 192.168.56.102 同步目標 操作系統centos 7 lsyncd項目地址：https://github.com/axkibe/lsyncd
1.源主機root用戶運行同步程序，backup用戶驗證目標主機；如果不想配密鑰驗證，同樣支持密碼驗證，在運行時(nodaemon)提示輸入或者在配置文件定義password_file參數。
生成密鑰對（略），目標主機添加公鑰，注意.ssh和密鑰的屬主權限 [root@192.168.56.102 ~]# echo "yyy" > /home/backup/.ssh/authorized_keys 源主機添加私鑰 [root@192.168.56.101 ~]# echo "xxx" > /root/.ssh/backup_rsa [root@192.168.56.101 ~]# chmod 600 /root/.ssh/backup_rsa 驗證登錄 [root@192.168.56.101 ~]# ssh -i /root/.ssh/backup_rsa backup@192.168.56.102
2.源主機安裝lsyncd，修改配置文件
安裝lsyncd之前先安裝epel-release
[root@192.168.56.101 ~]# yum install -y lsyncd
[root@192.168.56.101 ~]# rpm -qa | grep lsyncd
lsyncd-2.2.2-1.el7.x86_64
[root@192.168.56.101 ~]# cat /etc/lsyncd.conf
----
-- User configuration file for lsyncd.
--
-- Simple example for default rsync, but executing moves through on the target.
--
-- For more examples, see /usr/share/doc/lsyncd*/examples/
--
settings {
logfile = "/var/log/lsyncd.log",
statusFile = "/var/log/lsyncd.status",
}
sync {
default.rsyncssh,
source = "/data/web/web1",
host = "backup@192.168.56.102",
targetdir = "/data/backup/web/web1",
-- 10秒同步一次，默認15秒
delay = 10,
rsync = {
archive = true,
compress = true,
verbose = true,
rsh = "ssh -o StrictHostKeyChecking=no -i /root/.ssh/backup_rsa",
}
}
sync {
default.rsync,
source = "/data/web/web2",
target = "backup@192.168.56.102:/data/backup/web/web2",
rsync = {
archive = true,
compress = true,
verbose = true,
rsh = "ssh -o StrictHostKeyChecking=no -i /root/.ssh/backup_rsa",
--_extra = {"-e","ssh -o StrictHostKeyChecking=no","-e ssh -i /root/.ssh/backup_rsa"}
}
}
3.源主機啟動服務，看日志，目標主機檢查文件同步
[root@192.168.56.101 ~]# systemctl start lsyncd
單源多目標需求可參考
https://www.stephenrlang.com/2015/12/how-to-install-and-configure-lsyncd/
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